Ship project history: Fast torpedo gunboats; in Turkish Navy they officially were rated
as torpedo cruisers. Successful ships, but because of strong machinery deterioration
and unsatisfactory maintenance to WWI beginning they substantially lost battle efficiency. In particular, in 1915 Peik-i-Shevket could
made only 18kts.

Naval service: Berk-i-Satvet 2/1/1915 received serious damages on Russian mine. Peik-i-Shevket 6/8/1915
was torpedoed by British submarine E11; both ships were under repair till 1917. After First World War Peyk was
laid up at Istanbul. In 1937-1938 both survived ships passed repair and
modernization: superstructures were reconstructed, ship ends (new stem and transom stern)
were altered. After that they were used as patrols and TSs though officially continued to be rated
as torpedo cruisers. Both were handed over on demolition only in 1953-1955.